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Turn off default generation of userland dot symbols on powerpc64 now that

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we have a binutils that supports it. Kernel dot symbols remain on to assist
DDB.
This commit is contained in:
Nathan Whitehorn 2011-02-18 21:44:53 +00:00
parent ce8fb93178
commit 79c77d726e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=218824
19 changed files with 65 additions and 79 deletions
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9
contrib/gcc/config/rs6000/freebsd.h
View File

@ -37,6 +37,13 @@
#undef TARGET_AIX
#define TARGET_AIX TARGET_64BIT
#ifdef HAVE_LD_NO_DOT_SYMS
/* New ABI uses a local sym for the function entry point. */
extern int dot_symbols;
#undef DOT_SYMBOLS
#define DOT_SYMBOLS dot_symbols
#endif
#undef FBSD_TARGET_CPU_CPP_BUILTINS
#define FBSD_TARGET_CPU_CPP_BUILTINS() \
do \
@ -196,7 +203,7 @@
#ifdef __powerpc64__
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
asm (SECTION_OP "\n" \
" bl ." #FUNC "\n" \
" bl " #FUNC "\n" \
" nop\n" \
" .previous");
#endif

14
lib/csu/powerpc64/crti.S
View File

@ -32,13 +32,12 @@ __FBSDID("$FreeBSD$");
.section ".opd","aw"
.align 3
_init:
.quad ._init,.TOC.@tocbase,0
.quad .L._init,.TOC.@tocbase,0
.previous
.type _init,@function
.align 4
.global ._init
.type ._init,@function
._init:
.L._init:
stdu 1,-48(1)
mflr 0
std 0,64(1)
@ -49,13 +48,12 @@ _init:
.section ".opd","aw"
.align 3
_fini:
.quad ._fini,.TOC.@tocbase,0
.quad .L._fini,.TOC.@tocbase,0
.previous
.type _fini,@function
.align 4
.global ._fini
.type ._fini,@function
._fini:
.L._fini:
stdu 1,-48(1)
mflr 0
std 0,64(1)

2
lib/libc/gen/_thread_init.c
View File

@ -32,7 +32,7 @@ __FBSDID("$FreeBSD$");
void _thread_init_stub(void);
__weak_reference(_thread_init_stub, _thread_init);
__weak_reference_data(_thread_autoinit_dummy_decl_stub,
__weak_reference(_thread_autoinit_dummy_decl_stub,
_thread_autoinit_dummy_decl);
int _thread_autoinit_dummy_decl_stub = 0;

16
lib/libc/powerpc64/SYS.h
View File

@ -45,7 +45,7 @@
2: mflr %r0; \
std %r0,16(%r1); \
stdu %r1,-48(%r1); \
bl PIC_PLT(CNAME(HIDENAME(cerror))); \
bl CNAME(HIDENAME(cerror)); \
nop; \
addi %r1,%r1,48; \
ld %r0,16(%r1); \
@ -56,10 +56,6 @@ ENTRY(__CONCAT(__sys_,x)); \
.set CNAME(x),CNAME(__CONCAT(__sys_,x)); \
.weak CNAME(__CONCAT(_,x)); \
.set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \
.weak CNAME(__CONCAT(.,x)); \
.set CNAME(__CONCAT(.,x)),CNAME(__CONCAT(.__sys_,x));\
.weak CNAME(__CONCAT(._,x)); \
.set CNAME(__CONCAT(._,x)),CNAME(__CONCAT(.__sys_,x));\
_SYSCALL(x); \
bso 2b
@ -69,14 +65,12 @@ ENTRY(__CONCAT(__sys_,x)); \
ENTRY(__CONCAT(__sys_,x)); \
.weak CNAME(__CONCAT(_,x)); \
.set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \
.weak CNAME(__CONCAT(._,x)); \
.set CNAME(__CONCAT(._,x)),CNAME(__CONCAT(.__sys_,x));\
_SYSCALL(x); \
bnslr; \
mflr %r0; \
std %r0,16(%r1); \
stdu %r1,-48(%r1); \
bl PIC_PLT(CNAME(HIDENAME(cerror))); \
bl CNAME(HIDENAME(cerror)); \
nop; \
addi %r1,%r1,48; \
ld %r0,16(%r1); \
@ -91,17 +85,13 @@ ENTRY(__CONCAT(__sys_,x)); \
.set CNAME(x),CNAME(__CONCAT(__sys_,x)); \
.weak CNAME(__CONCAT(_,x)); \
.set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \
.weak CNAME(__CONCAT(.,x)); \
.set CNAME(__CONCAT(.,x)),CNAME(__CONCAT(.__sys_,x));\
.weak CNAME(__CONCAT(._,x)); \
.set CNAME(__CONCAT(._,x)),CNAME(__CONCAT(.__sys_,x));\
_SYSCALL(x); \
bnslr; \
\
mflr %r0; \
std %r0,16(%r1); \
stdu %r1,-48(%r1); \
bl PIC_PLT(CNAME(HIDENAME(cerror))); \
bl CNAME(HIDENAME(cerror)); \
nop; \
addi %r1,%r1,48; \
ld %r0,16(%r1); \

5
lib/libc/powerpc64/gen/_ctx_start.S
View File

@ -38,12 +38,13 @@
blrl /* branch to start function */
mr %r3,%r15 /* pass pointer to ucontext as argument */
nop
bl PIC_PLT(CNAME(_ctx_done)) /* branch to ctxt completion func */
bl CNAME(_ctx_done) /* branch to ctxt completion func */
/*
* we should never return from the
* above branch.
*/
nop
bl PIC_PLT(CNAME(abort)) /* abort */
bl CNAME(abort) /* abort */
nop
.section .note.GNU-stack,"",%progbits

2
lib/libc/powerpc64/sys/brk.S
View File

@ -63,7 +63,7 @@ ENTRY(brk)
mflr %r0
std %r0,16(%r1)
stdu %r1,-48(%r1)
bl PIC_PLT(HIDENAME(cerror))
bl HIDENAME(cerror)
nop
ld %r1,0(%r1)
ld %r0,16(%r1)

2
lib/libc/powerpc64/sys/cerror.S
View File

@ -45,7 +45,7 @@ ENTRY(HIDENAME(cerror))
std %r31,48(%r1)
mr %r31,%r3 /* stash errval in callee-saved register */
bl PIC_PLT(CNAME(__error))
bl CNAME(__error)
nop
stw %r31,0(%r3) /* store errval into &errno */

2
lib/libc/powerpc64/sys/exect.S
View File

@ -39,7 +39,7 @@ ENTRY(exect)
mflr %r0
std %r0,16(%r1)
stdu %r1,-48(%r1)
bl PIC_PLT(HIDENAME(cerror))
bl HIDENAME(cerror)
nop
ld %r1,0(%r1)
ld %r0,16(%r1)

2
lib/libc/powerpc64/sys/pipe.S
View File

@ -43,7 +43,7 @@ ENTRY(pipe)
mflr %r0
std %r0,16(%r1)
stdu %r1,-48(%r1)
bl PIC_PLT(HIDENAME(cerror))
bl HIDENAME(cerror)
nop
ld %r1,0(%r1)
ld %r0,16(%r1)

4
lib/libc/powerpc64/sys/ptrace.S
View File

@ -39,7 +39,7 @@ ENTRY(ptrace)
std %r5,56(%r1)
stw %r6,64(%r1)
bl PIC_PLT(CNAME(__error))
bl CNAME(__error)
nop
li %r7,0
stw %r7,0(%r3)
@ -57,7 +57,7 @@ ENTRY(ptrace)
blr
1:
stdu %r1,-48(%r1) /* lr already saved */
bl PIC_PLT(HIDENAME(cerror))
bl HIDENAME(cerror)
nop
ld %r1,0(%r1)
ld %r0,16(%r1)

2
lib/libc/powerpc64/sys/sbrk.S
View File

@ -58,7 +58,7 @@ ENTRY(sbrk)
mflr %r0
std %r0,16(%r1)
stdu %r1,-48(%r1)
bl PIC_PLT(HIDENAME(cerror))
bl HIDENAME(cerror)
nop
ld %r1,0(%r1)
ld %r0,16(%r1)

6
libexec/rtld-elf/powerpc64/rtld_start.S
View File

@ -65,7 +65,7 @@ _ENTRY(_rtld_start)
ld %r4,-0x8000(%r2) /* First TOC entry is TOC base */
subf %r4,%r4,%r2 /* Subtract from real TOC base to get base */
bl .reloc_non_plt_self /* reloc_non_plt_self(&_DYNAMIC,base) */
bl reloc_non_plt_self /* reloc_non_plt_self(&_DYNAMIC,base) */
nop
/*
@ -80,7 +80,7 @@ _ENTRY(_rtld_start)
addi %r4,%r1,128 /* &exit_proc on stack */
addi %r5,%r1,120 /* &obj_main on stack */
bl ._rtld /* &_start = _rtld(sp, &exit_proc, &obj_main)*/
bl _rtld /* &_start = _rtld(sp, &exit_proc, &obj_main)*/
nop
ld %r2,8(%r3)
ld %r11,16(%r3)
@ -133,7 +133,7 @@ _ENTRY(_rtld_bind_start)
ld %r3,0(%r11)
ld %r4,8(%r11)
bl ._rtld_bind # target addr = _rtld_bind(obj, reloff)
bl _rtld_bind # target addr = _rtld_bind(obj, reloff)
nop
ld %r2,8(%r3)

7
sys/conf/kern.mk
View File

@ -81,6 +81,13 @@ CFLAGS+= -msoft-float -mno-altivec
INLINE_LIMIT?= 15000
.endif
#
# Use dot symbols on powerpc64 to make ddb happy
#
.if ${MACHINE_ARCH} == "powerpc64"
CFLAGS+= -mcall-aixdesc
.endif
#
# For MIPS we also tell gcc to use floating point emulation
#

8
sys/powerpc/aim/locore64.S
View File

@ -174,7 +174,7 @@ ASENTRY(__start)
insrdi 9,8,1,0
mtmsrd 9
bl .OF_initial_setup
bl OF_initial_setup
nop
lis 4,end@ha
@ -188,14 +188,14 @@ ASENTRY(__start)
mr 6,20
mr 7,21
bl .powerpc_init
bl powerpc_init
nop
mr %r1, %r3
li %r3, 0
std %r3, 0(%r1)
bl .mi_startup
bl mi_startup
nop
b .OF_exit
b OF_exit
nop
/*

14
sys/powerpc/aim/swtch64.S
View File

@ -121,7 +121,7 @@ ENTRY(cpu_switch)
/* Save FPU context if needed */
andi. %r7, %r7, PCB_FPU
beq .L1
bl .save_fpu
bl save_fpu
nop
.L1:
@ -130,12 +130,12 @@ ENTRY(cpu_switch)
/* Save Altivec context if needed */
andi. %r7, %r7, PCB_VEC
beq .L2
bl .save_vec
bl save_vec
nop
.L2:
mr %r3,%r14 /* restore old thread ptr */
bl .pmap_deactivate /* Deactivate the current pmap */
bl pmap_deactivate /* Deactivate the current pmap */
nop
addi %r1,%r1,48
@ -161,7 +161,7 @@ blocked_loop:
stdu %r1,-48(%r1)
mr %r3,%r15 /* Get new thread ptr */
bl .pmap_activate /* Activate the new address space */
bl pmap_activate /* Activate the new address space */
nop
lwz %r6, PCB_FLAGS(%r17)
@ -169,7 +169,7 @@ blocked_loop:
andi. %r6, %r6, PCB_FPU
beq .L3
mr %r3,%r15 /* Pass curthread to enable_fpu */
bl .enable_fpu
bl enable_fpu
nop
.L3:
@ -178,7 +178,7 @@ blocked_loop:
andi. %r6, %r6, PCB_VEC
beq .L4
mr %r3,%r15 /* Pass curthread to enable_vec */
bl .enable_vec
bl enable_vec
nop
/* thread to restore is in r3 */
@ -276,7 +276,7 @@ ENTRY(fork_trampoline)
ld %r5,CF_ARG1(%r1)
stdu %r1,-48(%r1)
bl .fork_exit
bl fork_exit
nop
addi %r1,%r1,48+CF_SIZE-FSP /* Allow 8 bytes in front of
trapframe to simulate FRAME_SETUP

14
sys/powerpc/aim/trap_subr64.S
View File

@ -295,14 +295,14 @@ cpu_reset:
lis %r3,tocbase@ha
ld %r2,tocbase@l(%r3)
lis %r3,1@l
bl CNAME(.cpudep_ap_early_bootstrap) /* Set PCPU */
bl CNAME(cpudep_ap_early_bootstrap) /* Set PCPU */
nop
bl CNAME(.pmap_cpu_bootstrap) /* Turn on virtual memory */
bl CNAME(pmap_cpu_bootstrap) /* Turn on virtual memory */
nop
bl CNAME(.cpudep_ap_bootstrap) /* Set up PCPU and stack */
bl CNAME(cpudep_ap_bootstrap) /* Set up PCPU and stack */
nop
mr %r1,%r3 /* Use new stack */
bl CNAME(.machdep_ap_bootstrap) /* And away! */
bl CNAME(machdep_ap_bootstrap) /* And away! */
nop
/* Should not be reached */
@ -510,7 +510,7 @@ trapagain:
lis %r3,tocbase@ha
ld %r2,tocbase@l(%r3)
addi %r3,%r1,48
bl CNAME(.powerpc_interrupt)
bl CNAME(powerpc_interrupt)
nop
.globl CNAME(trapexit) /* backtrace code sentinel */
@ -538,7 +538,7 @@ CNAME(trapexit):
lis %r3,tocbase@ha
ld %r2,tocbase@l(%r3)
addi %r3,%r1,48
bl CNAME(.ast)
bl CNAME(ast)
nop
.globl CNAME(asttrapexit) /* backtrace code sentinel #2 */
CNAME(asttrapexit):
@ -587,7 +587,7 @@ dbtrap:
lis %r3,tocbase@ha
ld %r2,tocbase@l(%r3)
addi %r3,%r1,48
bl CNAME(.db_trap_glue)
bl CNAME(db_trap_glue)
nop
or. %r3,%r3,%r3
bne dbleave

11
sys/powerpc/include/asm.h
View File

@ -37,7 +37,7 @@
#include <sys/cdefs.h>
#ifdef PIC
#if defined(PIC) && !defined(__powerpc64__)
#define PIC_PROLOGUE XXX
#define PIC_EPILOGUE XXX
#define PIC_PLT(x) x@plt
@ -53,11 +53,6 @@
#define PIC_GOT(x) x
#endif
#ifdef __powerpc64__
#undef PIC_PLT
#define PIC_PLT(x) __CONCAT(.,x)
#endif
#define CNAME(csym) csym
#define ASMNAME(asmsym) asmsym
#ifdef __powerpc64__
@ -73,8 +68,8 @@
#define _ENTRY(x) \
.text; .align 2; .globl x; .section ".opd","aw"; \
.align 3; x: \
.quad .x,.TOC.@tocbase,0; .previous; \
.align 4; .globl .x; .type .x,@function; .x:
.quad .L.x,.TOC.@tocbase,0; .size x,24; .previous; \
.align 4; .type x,@function; .L.x:
#else
#define _ENTRY(x) \
.text; .align 4; .globl x; .type x,@function; x:

13
sys/powerpc/include/profile.h
View File

@ -83,13 +83,12 @@ __asm( " .text \n" \
" .section \".opd\",\"aw\" \n" \
" .align 3 \n" \
"_mcount: \n" \
" .quad ._mcount,.TOC.@tocbase,0 \n" \
" .quad .L._mcount,.TOC.@tocbase,0\n" \
" .previous \n" \
" .type _mcount,@function \n" \
" .align 4 \n" \
" .globl ._mcount \n" \
" .type ._mcount,@function \n" \
"._mcount: \n" \
" stdu %r1,-(288+120)(%r1) \n" \
".L._mcount: \n" \
" stdu %r1,-(288+128)(%r1) \n" \
" std %r3,48(%r1) \n" \
" std %r4,56(%r1) \n" \
" std %r5,64(%r1) \n" \
@ -103,7 +102,7 @@ __asm( " .text \n" \
" ld %r3,0(%r1) \n" \
" ld %r3,0(%r3) \n" \
" ld %r3,16(%r3) \n" \
" bl .__mcount \n" \
" bl __mcount \n" \
" nop \n" \
" ld %r4,112(%r1) \n" \
" mtlr %r4 \n" \
@ -115,7 +114,7 @@ __asm( " .text \n" \
" ld %r8,88(%r1) \n" \
" ld %r9,96(%r1) \n" \
" ld %r10,104(%r1) \n" \
" addi %r1,%r1,(288+120) \n" \
" addi %r1,%r1,(288+128) \n" \
" blr \n");
#else

11
sys/sys/cdefs.h
View File

@ -362,18 +362,7 @@
extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
#endif
#ifdef __STDC__
#ifdef __powerpc64__
#define __weak_reference(sym,alias) \
__asm__(".weak " #alias); \
__asm__(".equ " #alias ", " #sym); \
__asm__(".weak ." #alias); \
__asm__(".equ ." #alias ", ." #sym)
#else
#define __weak_reference(sym,alias) \
__asm__(".weak " #alias); \
__asm__(".equ " #alias ", " #sym)
#endif
#define __weak_reference_data(sym,alias)\
__asm__(".weak " #alias); \
__asm__(".equ " #alias ", " #sym)
#define __warn_references(sym,msg) \